Excellent 3 letter Premium domain name which can be put to variety of uses.

Overture/mo 5057
Wordtracker/day 165

some of the definitions for dsp are as follows.

Digital Signal Processing
Daikin Synchronised Power (Daikin Air Conditioners)
Daughters of Saint Paul (religious community)
Dawnshroud Peaks (Everquest game)
Dealer Service Portal
Decentralization Support Programme (Pakistan)
Decessit Sine Prole (Latin: Died Without Issue)
Decision Support Package
Decompression Sickness Panel
Dedicated Sub-Path
Deep Space Probe
Defense Satellite Program (US DoD)
Defense Standardization Program
Defense Support Program (US DoD satellite system)
Delaware State Police
Delivery Service Pack
Dell Service Provide
Delta Sigma Phi (fraternity)
Delta Sigma Pi (business fraternity)
Democratic Left Party (Turkey)
Democratic Socialist Party (Australia)
Demokratik Sol Parti (Turkish: Democratic Left Party)
Dentin Sialoprotein
Departure Sequencing Program
Depository Services Program
Depot Spare Parts
Depot Storage Point
Deputy Superintendent of Police
Design Services Procedures
Design Specification Package
Designated Sender Protocol (email)
Designated Stock Point
Designated Suppliers Program
Desmoplakin
Dessertspoon/Dessertspoonful
Detailed Scheduling and Planning
Developer Service Provider
Developer Studio Project (Microsoft file extension)
Devon and Somerset Police
Digital Service Provider
Digital Signal Processor
Digital Signal Protocol
Digital Signature Signing Process
Digital Sound Processing
Digital Speckle-Pattern Interferometry
Digital System Processor
Dilute Sulfuric Peroxide (dilute sulfuric acid and hydrogen peroxide mixture)
Direct Service Professional (social service)
Direct Stock Plans
Direct Support Platoon (US Army)
Director's Special
Directory System Protocol
Diritti Speciali di Prelievo (Italia: Special Drawing Rights; currency)
Disability Support Pension
Disabled Students Program
Disaster Support Package (FEMA)
Discrepancy
Disodium Phosphate
Display
Display System Protocol (packet switching)
Distinguished Service Professorship
Distributed Staff Program
Distribution Point
Distribution Software Publishers
District Superintendent Police
Division of the State Police
Document Services for Printing
DoD Standardized Profile
Domain Specific Part
Dominant Social Paradigm
Double Side Polishing (wafer, glass, metal)
Drift Start Position
Drill Sergeant Program
Drshnaps Productions (webcomic database)
Durgapur Steel Plant (India)
Dye Sublimation Printing
Dynamic Shift Program (Audi)
Dynamic Support Program (IBM)
Data Security Professional
Data Stream Protocol
Developer Service Plans
Digital Sound Package
Digital Studio Picture
Disable Saving Parameters
Display Parameters
Display Select Panel
Document Storage Processor
Down Stream Physical
Drive Slave Present
Dynamic Studio Professional Module

*courtesy: acronyms.thefreedictionary.com